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Although he saw that there was a fire in the city, Li Shimin didn't pay attention to it, after all, even if there were fires in a few places, it would be difficult for the fire to spread. What he was worried about was the Yuming Army outside the city, and he didn't know what tricks he would play. However, when he looked at the Zhou army outside the city again, he found that the raging fire ring had gradually been extinguished, and he could only see some faintly moving figures.

However, after a while, Li Shimin was surprised to find that although the raging fire on the ground had been extinguished, the ground that was red by the flames was still glowing dark red, faintly flashing.

"This fire is really weird!" Pei Lin also walked to Li Shimin's side at this time, looked at the dark red ground in the distance, frowned and said, "I don't know what Yuming is doing." ”

Li Shimin also felt that something was not quite right. He pondered for a moment and said, "Send four times more patrol soldiers, and order the soldiers to sleep in their clothes and keep their weapons by their side, so as to ensure that they can pick up arms and fight in the shortest possible time." At the same time, notify Sheng Yanshi in the city and ask him to strengthen his defense in case Yuming sneaks up! ”

He said faintly: "No matter what tricks Yuming plays, by dawn, all the truth will be revealed!" I want to see what tricks Yuming can play! ”

……

And at this moment, ten miles north of Xia County, Song Jingang said to Yuming with a happy face: "King Zhou, it seems that what you said is really right!" The black stone called 'coal' really burns, and it can burn for so long! ”

Yu Ming smiled slightly: "Although this thing is not as easy to burn as wood and hay, once ignited, it is not easy to extinguish. They will never be extinguished unless they are completely burned to ashes. Fortunately, there are a lot of things in the Hedong area, otherwise it would not be easy for us to find so much coal. ”

At this time, he was also secretly happy in his heart, thinking that this fire would definitely be able to burn all the Tang troops in the city to ashes.

After Yuming took Xia County before, he found that there were many exposed black mud stones here. After he took a closer look, Fang was surprised to find that this thing turned out to be coal from later generations. Only then did he remember that Hedong was the Shanxi of later generations, and Shanxi was China's largest coal-producing province, and coal mines could be found everywhere in the territory. Xia County, on the other hand, was built right on top of a small coal mine.

As a result, an idea immediately came to his mind: to use this coal mine to turn Xia County into a hellish furnace, so that the Tang army would be burned to ashes.

After discussing with the generals, Yuming first evacuated all the residents in the city, and then ordered Song Jingang to spread a thick layer of coal on the houses and streets in the city. Finally, a tunnel was dug underground to prevent their own personnel from entering and leaving the city and setting fires.

Although according to his thoughts, he hoped that Li Shimin would also enter the city. In this way, he can use this fire attack to eliminate a great enemy.

When Li Shimin entered the city, he couldn't stand the stench in the city, so he decided to stay outside the city, and only let Sheng Yanshi lead 100,000 Tang troops into the city.

In this way, the effect of this burning city will be greatly reduced.

Song Jingang originally wanted to slow down a little longer, and wait for Li Shimin to enter the city before launching a fire attack. But Yuming didn't dare to wait any longer. He didn't dare to guarantee that with Li Shimin's shrewdness, he would not be able to see anything unusual in the city after entering the city.

Therefore, after re-weighing, he still decided to launch a fire attack overnight.

He expected that with Li Shimin's prudence, when the enemy situation was unclear at night, he would not take the lead in attacking, and would generally choose to hold out. This will allow the fire to ignite over time. When Tang Jun finally found out that something was wrong, even if he wanted to put out the fire, it would be too late to escape.

……

At this time, the captain of Sheng Yanshi's personal soldiers was already in a panic.

He hurriedly came to the mansion of Xia County again, stood outside the bedroom door of Sheng Yanshi, knocked on the door, and shouted loudly: "General Sheng, wake up!" Big things are wrong! ”

Sheng Yanshi, who had been sleeping soundly, sat up from the bed with squinted eyes, and then yawned: "What happened again?" Is it that the Zhou army is attacking? ”

The captain of the pro-soldier said with a sad face: "General Yu, it's not the Zhou army that is here. It's that the fire in the city can't be extinguished no matter how much it burns, and it burns more and more! ”

"What?" Sheng Yanshi couldn't help but be surprised: "You didn't lie, did you, there is such a thing?" ”

"It's true! If the general doesn't believe me, he can look on the street. The captain of the pro-soldier said with an anxious expression.

"Okay, take General Ben to take a look." Sheng Yanshi got up at this time and said.

Only then did he realize that the ground was so hot that even if he was wearing thick leather boots, he could feel the heat underground.

"It's strange, it's all a moon, why is it still so hot?" Sheng Yanshi got dressed, opened the door, and then strode with the captain of the pro-soldier to the outside of the mansion......

When he walked out into the street, he was stunned. I saw that there were fires everywhere in the city, and there was hardly a single intact house, and all the houses were burning. The street in the distance is all red as far as the eye can see. A heat wave is coming, and it is hotter than Futian.

Master Sheng Yan was taken aback, he wiped the sweat on his face, and said in shock: "How can this happen? Where did this fire come from? ”

The captain of the pro-soldier also said anxiously: "My subordinates don't know, this fire seems to have burned up from the ground, and it can't be extinguished no matter how you pour it!" A basin of water was poured down, and it didn't take long for it to evaporate into water vapor. Then after a while, the place that had just been extinguished could still burn again, and the red flames went straight up, which was really evil. ”

"Find a way to put out the fire! I don't care what method you use, you must extinguish it before dawn! Sheng Yanshi said sharply: "Otherwise, the city will be full of fire after dawn, how can I explain to King Qin?" Will you give him a ruined city that has been destroyed by fire? ”

When the captain of the pro-soldier was only promised, and he didn't know what to do, he ran over from the other end of the street, and the knight on the horse ran in front of Sheng Yanshi, immediately turned over and dismounted, and said breathlessly: "General, it's not good!" A fire has also started outside the city, trapping us in the city! ”

"What! Take me up to the castle tower to see it! After Sheng Yanshi heard this, he suddenly "chuckled" in his heart, and a bad omen rose.

He immediately mounted his mount, and then hastened his horse and followed the captain of the sentry who was on duty on the tower to the tower of the north gate.

The temperature here was a little cooler, and the fire hadn't burned yet, so he could catch his breath.

It's just that looking at the ground outside the city made him dumbfounded. I saw that the fire that Zhou Jun had set up before, after it was naturally extinguished, burned again, and the fire area expanded a lot. Where there is still a ring of fire, it is simply a ring of fire. And this ring of fire is gradually surging towards the city wall.

"What's going on? Why does the ground burn? Sheng Yanshi couldn't help but gasp. This ring of fire is more than 20 zhang wide, and it is impossible to jump over it at all. And it is gradually expanding, getting closer and closer to the city walls.

At this time, he finally had the intention of retreating, and secretly thought that if the fire outside the city continued to develop, it would definitely burn into the city.

As soon as he thought of the city, he immediately looked back at the Xia County Mansion.

I saw that after a while, the fire in the city had become more and more rapid, and there were even red flames rising from the ground of the street, and the flames went straight up, and on the roofs of some houses, there was thick smoke coming out of the fire, shrouding Xia County in a thick smoke.

Moreover, at this time, the north wind was blowing, the wind helped the fire, the fire borrowed the power of the wind, and burned more and more fiercely, and the entire city almost became a sea of fire, and many Tang soldiers who ran out of the fire were running towards the city wall. At the moment, it seems that only this wall has not caught fire.

Although Sheng Yanshi was still dozens of feet away from the fire outside the city and inside the city, he also felt the heat wave coming from the wind. It made him feel a chill in his heart.

"Not good! Something is wrong! If this continues, sooner or later the fire will reach the city walls! Sheng Yanshi wiped the sweat from his forehead, and then said to the sentry captain: "Send a signal to King Qin quickly, and ask him to send someone to save us!" He knew that he could not extinguish the fire on his own.

"Subordinates obey." After the captain of the sentry answered, he hurriedly blew the horn, which was so loud and long that it could be heard clearly even in the Tang army camp a few miles away.

In fact, Li Shimin had already discovered that the fire had been rekindled outside the city, and he had sent someone to check it. I was surprised to find that the fire had been burned from under the ground and could not be extinguished. After some fighting, Duan Zhixuan, who went to fight the fire, not only did not extinguish the fire, but was burned several soldiers.

After hearing Sheng Yanshi's distress message, Li Shimin was helpless, so he had to say to the herald: "Call Sheng Yanshi back, ask him to break through as soon as possible and give up Xia County!" This fire is weird, and it seems that it cannot be extinguished in a short time! ”

A moment later, there was a sound of gold in the Tang army camp, and more than a dozen trumpeters blew their horns. A message was conveyed to Master Sheng Yan asking him to retreat.

After Sheng Yanshi heard this, Fang breathed a sigh of relief, now he was not afraid of losing Xia County.

So he hurriedly ordered someone to find a rope. Then let the captain of his own army, with a few soldiers who were physically strong and nimble, go down the rope to the outside of the city, ready to try to force their way through the fire.

It's just that this group of Tang troops only walked forward for more than 20 zhang before they were forced back by the oncoming fire and choking smoke.

The captain of the pro-soldier stood under the city wall and shouted at Sheng Yanshi at the head of the city: "General Sheng, the fire outside the city is very fierce, and you can't get close at all, let alone break out......

Sheng Yanshi was helpless, so he had to say: "Since this is the case, you guys should come up first, the city wall of Xia County is not short, maybe even if the fire burns to the root of the city wall, it can't burn to the city wall!" ”

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